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gl_backend: Align Pixel Storage
This commit makes sure GL reads on the correct pack size for the respective texture buffer.
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@ -661,8 +661,8 @@ void CachedSurface::FlushGLBuffer() {
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gl_buffer[0].resize(GetSizeInBytes());
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const FormatTuple& tuple = GetFormatTuple(params.pixel_format, params.component_type);
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// Ensure no bad interactions with GL_UNPACK_ALIGNMENT
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ASSERT(params.width * GetBytesPerPixel(params.pixel_format) % 4 == 0);
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const u32 align = std::clamp(params.RowAlign(0), 1U, 8U);
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glPixelStorei(GL_PACK_ALIGNMENT, align);
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glPixelStorei(GL_PACK_ROW_LENGTH, static_cast<GLint>(params.width));
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ASSERT(!tuple.compressed);
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glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
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@ -707,8 +707,8 @@ void CachedSurface::UploadGLMipmapTexture(u32 mip_map, GLuint read_fb_handle,
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const FormatTuple& tuple = GetFormatTuple(params.pixel_format, params.component_type);
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// Ensure no bad interactions with GL_UNPACK_ALIGNMENT
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ASSERT(params.MipWidth(mip_map) * GetBytesPerPixel(params.pixel_format) % 4 == 0);
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const u32 align = std::clamp(params.RowAlign(mip_map), 1U, 8U);
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glPixelStorei(GL_UNPACK_ALIGNMENT, align);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, static_cast<GLint>(params.MipWidth(mip_map)));
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const auto image_size = static_cast<GLsizei>(params.GetMipmapSizeGL(mip_map, false));
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@ -11,6 +11,7 @@
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#include <vector>
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#include "common/alignment.h"
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#include "common/bit_util.h"
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#include "common/common_types.h"
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#include "common/hash.h"
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#include "common/math_util.h"
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@ -205,6 +206,13 @@ struct SurfaceParams {
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return bd;
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}
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u32 RowAlign(u32 mip_level) const {
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const u32 m_width = MipWidth(mip_level);
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const u32 bytes_per_pixel = GetBytesPerPixel(pixel_format);
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const u32 l2 = Common::CountTrailingZeroes32(m_width * bytes_per_pixel);
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return (1U << l2);
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}
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/// Creates SurfaceParams from a texture configuration
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static SurfaceParams CreateForTexture(const Tegra::Texture::FullTextureInfo& config,
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const GLShader::SamplerEntry& entry);
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